Efficient Cars Chart for June, 2012
Spreadsheet The spreadsheet shown here, refined and updated over five years, is our ongoing attempt to summarize the economic and carbon-footprint efficiency of cars you can buy now, or in the near future. Note that it includes a few sample used cars. The carbon generated in manufacturing any car usually exceeds the carbon emissions for [...]
PV Generation Potential for March
The PV Power Map is a report of national solar resource availability as illustrated by the monthly energy output of a nominal 1-kilowatt (kW) photovoltaic (PV) system by location. This issue contains two maps: one generated using SolarAnywhere’s satellite time-series irradiance data, and the other using National Renewable Energy Laboratory Typical Meteorological Year (TMY3) data. Comparing these two maps highlights why TMY3 data are not recommended to predict short-term performance.
PV Generation Potential for January and February
The PV Power Map is a report of national solar resource availability as illustrated by the monthly energy output of a nominal 1-kilowatt (kW) photovoltaic (PV) system by location. Comparing monthly maps makes it possible to see how irradiance and associated PV system power output vary over time from region to region, often with unexpected results. For example, compare January and February solar resource availability on the eastern seaboard with the Gulf Coast.
See SOLAR TODAY’s May Issue Online
The May 2012 issue of SOLAR TODAY is online. See issue highlights, search the digital edition and share articles. Start now!
Efficient Transport: What Trucks Need to Learn from Trains
The June issue of SOLAR TODAY will feature our annual transportation section, including the popular roundup of EV, hybrid and alternate-fuel cars. But personal transportation is only a part of our oil import and greenhouse gas problem. Another big issue is moving freight. Confronted with $4 diesel fuel, headed to $10, trucking companies dream of [...]
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